OpenAIRE compatibility for DSpace repositories - OR 2014 workshop
1. OpenAIRE compatibility
for DSpace repositories
OPEN REPOSITORIES 2014
JUNE 9, HELSINKI, FINLAND
Pedro Principe, José Carvalho,
Eloy Rodrigues, Ricardo Saraiva
University of Minho
3. AGENDA
OR2014 @ Helsinki
1. Overview of the OpenAIREplus project & the OpenAIRE
guidelines
2. Presentation of the OpenAIRE guidelines for Literature
Repositories: Aim, versions and specifications
• OpenAIRE compatibility status: levels and OAI sets
3. How to make the repository OpenAIRE compatible: DSpace
repository platform
• OAI Extended & OpenAIRE Authority Control
• OAI 2.0 concepts – XOAI Core Library
4. Demo RepositóriUM: OpenAIRE compatibility in practice
5. OpenAIRE validator and registration process
5. What is OpenAIRE
• A Participatory European Open Access infrastructure
to manage scientific publications and associated
scientific material via repository networks.
• Supports discovery, sharing and re-use of Open
Access publications and EC funded research results.
• Enhances publications by interconnecting them with
data sets, funding information, related publications,
institutional afiliation, metrics...
OR2014 @ Helsinki
9. EC OA Mandate Progression
FP7 OA Pilot (2008)
• Grant agreement SC39
• 20% programme areas
• Deposit in Repositories
• ERC‘s OA Guidelines: Deposit
in discipline (or institutional)
repositories. Cap embargo.
Horizon 2020 (2014)
• All grant agreements
• 100% programme areas
• Deposit in Repositories
• Open Data Pilot
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11. OpenAIREplus
• OpenAIRE is moving from a publication infrastructure to a
more comprehensive infrastructure that covers all types of
scientific output.
• To put this into practice an integrated suite of guidelines
were developed with specific requirements supporting
the goal of OpenAIRE and the European Commission.
• Managers of scholarly communication systems across
Europe will be able to support authors to fulfill the EC
Open Access requirements, as well as the requirements
of other (national or international) funders with whom
OpenAIRE cooperates.
OR2014 @ Helsinki
12. OpenAIRE Guidelines
• OpenAIRE has collaborated with key stakeholders and has
produced three sets of guidelines for its data providers, all
based on existing well-established standards.
• Provide additional support for OAI Aggregators and Open
Access Journals to maintain provenance on the record or
at journal level.
• Best practices for the use of transfer protocol (OAI-PMH),
metadata formats, controlled vocabularies.
What are the…
OR2014 @ Helsinki
13. How do they work?
• Assist heterogeneous e-infrastructures like repositories,
data archives and CRIS to interoperate in one common
information space.
• Validation / Registration of OpenAIRE compatible data
sources.
• Metadata is aggregated through simple OAI-sets: for
thematic and institutional repositories
OR2014 @ Helsinki
14. How do they work?
• Identification of Open Access and funded research results by
OAI-Sets:
• ‘openaire’ – expose Open Access publications and/or Funded publications
• ‘openaire_data’ – only expose datasets fulfilling at least one of the following
criteria:
• The dataset is outcome of a funded research project
• The dataset is linked with a publication in the OpenAIRE information space
• ‘openaire_cris’ – Different OAI-PMH sets need to be made available: for each
entity type (e.g. get all records of cfProject), for the entire CERIF XML graph
• Regular harvesting from the data sources.
• Latest schema guarantees backwards-compatibility with previous
versions (‘ec_fundedresources’).
OR2014 @ Helsinki
16. OpenAIRE Guidelines
• Find and discuss the guidelines at: guidelines.openaire.eu
• Test and register the repository at: validator.openaire.eu
• Find support and more info at: www.openaire.eu
How to get involved?
Wiki: http://guidelines.openaire.eu
OR2014 @ Helsinki
19. AUGUST 2010
initial document
NOVEMBER 2010
(V. 1.1)
OCTOBER 2012
(V. 2.0)
Compatibility for
aggregators.
Extended
Namespace for
Project id.
DECEMBER 2012
(3.0 beta)
APRIL 2013
(3.0)
OAI set has been renamed
from ec_fundedresources to
openaire.
New relation elements for
indicating external identifiers,
references and connections to
datasets.
Literature Guidelines – versions
EC funded content
EC and/or other
funded content
Open Access and
EC and/or other
funded content
20. Guidelines 1.0 >> 2.0
• Provide the OpenAIRE compatibility for repositories and
aggregators.
• Introduces two main changes:
• Support for aggregators to become OpenAIRE compatible in order to
expose their metadata to the OpenAIRE infrastructure.
• Extended namespace for project identification.
• Support a generic way of expressing project information,
allowing its use not only for EC/FP projects, but ideally for any
funder and project (national or international).
• Repositories that are already OpenAIRE compatible will remain
compatible with no additional work.
• The mandatory parts are the same as in the Guidelines 1.1.
OR2014 @ Helsinki
21. Versions – useful links
1. http://www.openaire.eu/en/component/content/article/207
i. http://www.openaire.eu/en/component/attachments/download/79 (1.1)
2. http://www.openaire.eu/en/component/content/article/9-news-events/427
i. http://www.openaire.eu/about-openaire/publications-presentations/public-
project-documents/doc_download/431-openaire-guidelinesv2-0en (2.0)
3. http://guidelines.openaire.eu (3.0)
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22. Why specific guidelines?
needed to…
FUNDING INFORMATION
ACCESS RIGHTS AND LICENSE INFO
REFERENCED DATASETS & RELATED PUBLICATIONS
EMBARGO DATE INFORMATION
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23. OpenAIRE Guidelines
• The OpenAIRE guidelines are supplementary
and built on top of the DRIVER Guidelines
• Plus fields: projectID, accessRights, embargoEndDate.
• All aspects of the DRIVER Guidelines are valid,
with a very few exceptions.
• Guidelines with specific requirements
supporting the goal of OpenAIRE and the EC.
OR2014 @ Helsinki
24. OpenAIRE Set
• Content definitions:
• The content to be inserted in the OpenAIRE set must be (EC)
funded content (1st only EC, after Oct. 2012 for any funder (national
or intern.)).
• Set naming
OR2014 @ Helsinki
setName setSpec*
The OpenAIRE set EC_funded_resources set ec_fundedresources
26. projectID
Element name projectID
DCMI definition dc:relation
Usage Mandatory
Usage instruction A vocabulary of projects will be exposed by OpenAIRE through
OAI-MPH, and available for all repository managers. Values will
include the project name and projectID.
The projectID equals the Grant Agreement number, and is defined
by the namespace: info:eu-repo/grantAgreement/Funder/
FundingProgram/ProjectNumber/
Jurisdiction/ProjectName/ProjectAcronym/
Example:
<dc:relation> info:eu-repo/grantAgreement/EC/FP7/123456 </dc:relation>
<dc:relation> info:eu-repo/grantAgreement/EC/FP7/12345/EU//OpenAIRE </dc:relation>
27. accessRights
Element name accessRights
DCMI definition dc:rights
Usage Mandatory
Usage instruction Use values from vocabulary Access Rights at
http://wiki.surffoundation.nl/display/standards/info-
eu-repo/#info-eu-repo-AccessRights;
• info:eu-repo/semantics/closedAccess
• info:eu-repo/semantics/embargoedAccess
• info:eu-repo/semantics/restrictedAccess
• info:eu-repo/semantics/openAccess
Examples:
<dc:rights> info:eu-repo/semantics/openAccess </dc:rights>
28. embargoEndDate
Element name embargoEndDate
DCMI definition dc:date
Usage Recommended
Usage instruction Recommended when accessRights = info:eu-
repo/semantics/embargoedAccess
The date type is controlled by the name space info:eu-
repo/date/embargoEnd/, see
http://wiki.surffoundation.nl/display/standards/info-
eu-repo/#info-eu-repo-DateTypesandvalue. Encoding
of this date should be in the form YYYY-MM-DD
(conform ISO 8601).
Examples:
<dc:date> info:eu-repo/date/embargoEnd/2011-05-12 <dc:date>
30. OpenAIRE Guidelines
Aim
Provide orientation for repository managers to define and
implement their local data management policies according to the
requirements of the OpenAIRE.
These guidelines are intended to guide repository manager to
expose to the OpenAIRE infrastructure not only EC funded
publications, but also other Open Access publications, regardless of
their funding.
Merger of the DRIVER Guidelines into the context of OpenAIRE
Guidelines.
Part of a set of OpenAIRE Guidelines…
For Literature repositories 3.0
31. OpenAIRE Guidelines
What’s new:
• The OpenAIRE OAI set has been renamed from
‘ec_funded_resources’ to ‘openaire’.
• New elements for indicating external identifiers,
relations to other publications (references), and
relations to research datasets have been defined.
For Literature repositories 3.0
OR2014 @ Helsinki
32. Metadata field - Contents
1. Field Name
2. DC Field
3. Usage
4. Usage Instruction
5. Do Not Confuse With
6. Since
7. Examples
8. Comments
OR2014 @ Helsinki
33. Alternative Identifier
Element name Alternative Identifier
DCMI definition dc:relation
Usage Recommended
Usage instruction List alternative identifiers for this publication that are
not the primary identifier (repository splash page), e.g.,
the DOI of publisher’s version, the PubMed/arXiv ID.
The term is defined by info:eu-
repo/semantics/altIdentifier info:eu-
repo/semantics/altIdentifier/<scheme>/<ident
ifier> where <scheme> must be one of the
following: Ark,arxiv, doi, hdl, isbn, purl…
Example
<dc:relation> info:eu-repo/semantics/altIdentifier/doi/10.1234/789.1 </dc:relation>
34. Referenced Dataset
Element name Referenced Dataset
DCMI definition dc:relation
Usage Recommended
Usage instruction Encodes links to research datasets connected
with this publication. The syntax of info:eu-
repo/semantics/dataset is: info:eu-
repo/semantics/dataset/<scheme>/<identifier
> where <scheme> must be one of the
following: Ark,arxiv, doi, hdl, isbn, purl…
Example
<dc:relation> info:eu-repo/semantics/dataset/doi/10.1234/789.1 </dc:relation>
35. Referenced Publication
Element name Referenced Publication
DCMI definition dc:relation
Usage Recommended
Usage instruction Encode links to publications referenced by this
publication. The syntax of info:eu-
repo/semantics/reference is: info:eu-
repo/semantics/reference/<scheme>/<identifie
r> where <scheme> must be one of the
following: ark, arxiv, doi, hdl, isbn…
Examples:
<dc:relation> info:eu-repo/semantics/reference/doi/10.1234/789.1
</dc:relation>
38. Compatibility status
OR2014 @ Helsinki
OpenAIRE
basic
Only Open
Access
content
OpenAIRE
2.0
EC funded
content
OpenAIRE
2.0 +
Open Access
and EC
funded
content
OpenAIRE
3.0
Open Access
and/or EC
funded
and/or
National/oth
er funded
content
39. Compatibility status
OR2014 @ Helsinki
OpenAIRE
basic
Only Open
Access content
via driver oai
set
OpenAIRE
2.0
EC funded
content
via
ec_funded_re
sources oai
set
OpenAIRE
2.0 +
Open Access
and EC funded
content
via driver and
ec_funded_res
ources oai set
OpenAIRE
3.0
Open Access
and/or EC
funded and/or
National/other
funded content
via openaire
oai set
44. Topics
• OpenAIRE compatibility for Dspace versions
• OAI Extended Addon
• XOAI addon
• OAI 2.0
• Specific metadata values
• Authority Control Addon
OR2014 @ Helsinki
45. OpenAIRE compatibility for
different Dspace versions
OR2014 @ Helsinki
Via OAIextended Addon and also via XOAI addonDspace 1.8.2
• Compatibility with OpenAIRE 2.0 guidelines
OAI 2.0 is a standard part of DSpace 3.0DSpace 3
• Compatibility with OpenAIRE 2.0 guidelines via XOAI.
• (fix ‘info:eu-repo/grantAgreement/EC/FP’ on the filter ‘openairerelationFilter’)
OAI 2.0 is a standard part of DSpace 4.0DSpace 4
• OpenAIRE 2.0 compatibility via XOAI and will be partially compatible with
OpenAIRE 3.0 guidelines via patch (to be presented briefly).
OpenAIRE compatible versionDSpace 5
• Compatibility with OpenAIRE 3.0 and OpenAIRE data 1.0
46. OAI extended Addon
OAI Extended Addon (or a patch to be more precise):
• Extends the base functionality of the OAI-PMH interface
and delivers repository administrators more flexibility and
functionalities to select and filter the information.
• The purpose of the OAI Extended Addon was to modify the
OAI Interface's output, showing only items that were
compliant with the DRIVER Guidelines.
• The Addon provides also the tools to create a set according
to the requirements of the OpenAIRE Guidelines, helping
European repositories to become OpenAIRE compliant.
• Other features are: hability to show didl schema and ETDMS
itens… can easily be configured, changed or extended.
48. OAIextended
•Initially created for the DRIVER Guidelines
• Since Nov. 2010 enables OpenAIRE compatibility.
How?
• Filter all the records that have a dc.relationwith:
info:eu-repo/grantAgreement/EC/FP7/??????
• To the EC Funded Resources SET
OpenAIRE 2.0 guidelines set
50. XOAI
• XOAI is a java implementation of an adaptable OAI-PMH
data provider interface.
• Enabling features like:
• OpenAIRE and Driver compliance
• Item filtering and formatting
• Style Sheet Support
• Virtual sets
• Virtual contexts.
XOAI info: https://github.com/lyncode/xoai
XOAI guide: http://www.lyncode.com/dspace/addons/xoai/doc/XOAI_en.pdf
What is XOAI Add-on? (for DSpace 1.8.x)
OR2014 @ Helsinki
51. OAI 2.0
What is OAI 2.0?
OAI 2.0 is a Java implementation of an OAI-PMH data provider
interface that uses XOAI, an OAI-PMH Java Library.
Why OAI 2.0?
Projects like OpenAIRE, Driver have specific metadata
requirements.
As the OAI-PMH protocol doesn't establish any frame to
these specifics, OAI 2.0 can have more than one instance of
an OAI interface (feature provided by the XOAI core library)
so one could define an interface for each project.
OAI 2.0 is a standard part of DSpace 3.0
OR2014 @ Helsinki
52. OAI 2.0
• With a Filter is possible to select information from the
data source.
• A Transformer allows to make some changes in the
metadata before showing it in the OAI interface
• OAI 2.0 also adds a new concept to the OAI-PMH basic
specification, the concept of context.
http://www.example.com/xoai/driver
http://www.example.com/xoai/openaire
http://www.example.com/xoai/request
Concepts: Filter, Transformer and Context
OR2014 @ Helsinki
53. OAI 2.0
DRIVER OPENAIRE
Contexts could be seen as virtual distinct OAI interfaces
OR2014 @ Helsinki
http://repositorium.sdum.uminho.pt/oai/driver
http://repositorium.sdum.uminho.pt/oai/openaire
http://repositorium.sdum.uminho.pt/oai/request
56. OAI 2.0 (ec_fundedresources set)
Webinars on OpenAIRE compatibility for repositories – March/April 2014
http://repositorium.sdum.uminho.pt/oai/openaire?verb=ListSets
57. OAI 2.0 (record)
Webinars on OpenAIRE compatibility for repositories – March/April 2014http://repositorium.sdum.uminho.pt/oai/openaire?verb=ListRecords&metadataPrefix=oai_dc&set=ec_fundedresources
58. Specific metadata values
• Have a dc:relation field in input-forms.xml to projects.
• You can also use the OpenAIRE Authority Control
Addon to facilitate the search process of the project
identification.
• http://projeto.rcaap.pt/index.php/lang-en/consultar-recursos-
de-apoio/remository?func=fileinfo&id=354
How do you easily add… dc:relation with the project ID
OR2014 @ Helsinki
59. Specific metadata values
• Just use a combo-box for dc:rights to input the 4 options:
• info:eu-repo/semantics/closedAccess
• info:eu-repo/semantics/embargoedAccess
• info:eu-repo/semantics/restrictedAccess
• info:eu-repo/semantics/openAccess
• Use a input-box for dc:date to insert the embargo end
date:
• <dc:date> info:eu-repo/date/embargoEnd/2014-05-12 <dc:date>
+ info: https://wiki.duraspace.org/pages/viewpage.action?pageId=33238567
http://colab.mpdl.mpg.de/mediawiki/ESciDoc_Application_Profile_OpenAIRE
How do you easily add… dc:rights and embargo end date
OR2014 @ Helsinki
60. Addon
OpenAIRE Authority Control
• This Addon use Dspace “Authority Control”
functionality:
• provides a way to list and verify OpenAIRE projects
(FP7);
• the list of projects is maintained as a web-service
• a local cache is created in order to be queried by users
• only adds the correct value in dc.relation field
• Main goals:
• Simplify and standardize the projects (ID) identification
in the deposit process;
• Facilitates compliance with the OpenAIRE guidelines
62. OpenAIRE
Authority Control Addon
• Allows users to search and include FP7 projects ID in the
metadata of the records disposed in accordance with the
guidelines
* Needs the OAIextended Addon to create the set
(ec_fundedresources)
68. RepositóriUM
Currently running DSpace V3.2
OR2014 @ Helsinki
OAI 2.0 is a standard part of DSpace 3.0
OAI 2.0 is a Java implementation of an OAI-PMH data provider interface that
uses XOAI, an OAI-PMH Java Library.
OAI 2.0 can have more than one instance of an OAI interface
(feature provided by the XOAI core library) so one could define an
interface for each project with specific metadata:
http://repositorium.sdum.uminho.pt/oai/oai?verb=ListSets
http://repositorium.sdum.uminho.pt/oai/driver?verb=ListSets
http://repositorium.sdum.uminho.pt/oai/openaire?verb=ListSets
69. RepositóriUM
Currently running DSpace V3.2
OR2014 @ Helsinki
http://repositorium.sdum.uminho.pt/oai/openaire?verb=GetRecord&metadataPrefix=oai_dc&iden
tifier=oai:repositorium.sdum.uminho.pt:1822/22267
70. RepositóriUM
Currently running DSpace V3.2
OR2014 @ Helsinki
/dspace/config/crosswalks/oai/transformers
Bug fix:
‘info:eu-repo/grantAgreement/EC/FP’ on the filter ‘openairerelationFilter’)
71. OR2014 @ Helsinki
Assuming the variables $DSPACE_SRC, $ADDON_SRC and $DSPACE_BIN to identify the locations of the
following directories: DSpace sources, OpenAIRE Authority Control Add-on source and DSpace deployment
directory (same as dspace.dir at dspace.cfg file).
Steps
Step 1 : Copy Source
cp -r $ADDON_SRC/data/dspace-source/* $DSPACE_SRC/
Step 2 : Add messages
cat $ADDON_SRC/data/Messages.properties >> $DSPACE_SRC/dspace-
api/src/main/resources/Messages.properties
In the package it's also provided the portuguese message translation
cat $ADDON_SRC/data/Messages_pt_PT.properties >> $DSPACE_SRC/dspace-
api/src/main/resources/Messages_pt_PT.properties
OpenAIRE Authority Control
Installing openaireauthoritycontrol_v3.0 (for Dspace 3.2)
72. OR2014 @ Helsinki
Step 3 : Configure DSpace
Uncomment the authority control plugins and add the new one (suppose installation over a
clean DSpace 3.2), so at $DSPACE_SRC/dspace/config/dspace.cfg change
plugin.named.org.dspace.content.authority.ChoiceAuthority =
org.dspace.content.authority.OpenAIREAuthority = OpenAIRE
Also add:
choices.plugin.dc.relation = OpenAIRE
choices.presentation.dc.relation = lookup
authority.controlled.dc.relation = true
to DSpace Authority Control Manager, and also add:
openaire.projects.filename = ${dspace.dir}/config/openaire-cache.list
openaire.projects.url = "http://api.openaire.research-
infrastructures.eu:8280/is/mvc/openaire/export/FP7/ALL/ALL/project/dspace.do"
# Minimum of chars to start searching on the list (default >= 4)
openaire.projects.suggest.minchar = 4 # Maximum of projects listed (default <=
10)openaire.projects.suggest.max = 20
OpenAIRE Authority Control
Installing openaireauthoritycontrol_v3.0 (for Dspace 3.2)
73. OR2014 @ Helsinki
Step 4: Configure input-forms.xml
At $DSPACE_SRC/config/input-forms.xml after '<page number="1">' add:
<field>
<dc-schema>dc</dc-schema>
<dc-element>relation</dc-element>
<dc-qualifier></dc-qualifier>
<repeatable>false</repeatable>
<label>OpenAIRE Project Identifier</label>
<input-type>onebox</input-type>
<hint>Enter the search term (number, name or acronym) of the European project (EC
/ ERC) and click on the magnifying glass to select the project. <a
href="http://www.openaire.eu/open-access/open-access-in-fp7 ">More
Information</a></hint>
</field>
OpenAIRE Authority Control
Installing openaireauthoritycontrol_v3.0 (for Dspace 3.2)
User view
74. OR2014 @ Helsinki
Post Installation
After building DSpace (mvn & ant - see the DSpace Documentation), configure cron to
refresh the openaire project list, for example:
0 0 * * * $DSPACE_BIN/bin/openaire-refresh-list
It's also recommended to execute the same script just after deploying the add-on
(after building DSpace) for the first time, this will download the list of OpenAIRE
projects, this is required for the add-on to work properly.
$DSPACE_BIN/bin/openaire-refresh-list
OpenAIRE Authority Control
Installing openaireauthoritycontrol_v3.0 (for Dspace 3.2)
77. By editing the item metadata
Add the field dc.relation if it doesn’t exist in the item…
78. By editing the item metadata
Unlock the key authority value for manual editing…
79. By editing the item metadata
Search by the name or the project id number…
80. By editing the item metadata
Block the dc.relation field manual edition and update the item
81. OR2014 @ Helsinki
Promote awareness and disseminate the OpenAIRE compliance regularly
within your academic & researchers community;
Provide the OpenAIRE compatibility of your repository trough the OAIextend
or the XOAI Add-ons;
Install on you repository the OpenAIRE authority control Add-on for
facilitating the publications submission and the correct filling of the necessary
information;
Monitor periodically your repository in search for EC & ERC funded
publications and update the necessary metadata whenever needed.
Recommendations
84. Registration Steps
1.Register your repository in OpenDOAR
OpenDOAR is an authoritative worldwide directory of
academic open access repositories.
2. Test compliancy with OpenAIRE
Make your repository OpenAIRE complaint – by
implementing the OpenAIRE Guidelines
3. Add your repository in OpenAIRE
OpenAIRE in collaboration with OpenDOAR provides you an
easy web tool to help you register the repository.
85. 1. OpenDOAR
• The first step is to register your repository in
OpenDOAR.
• If you are already registered in OpenDOAR:
• Check if the information is update
• Attention to the URL and admin email
86. 2. Test the OpenAIRE
compliance
• After you have made some progress in implementing
the guidelines you should run a compliancy test.
• The OpenAIRE provides a validator where you can verify if
the repository is truly compatible with the guidelines.
• Enter the OAI-PMH base URL of your repository and
choose to test your repository against the OpenAIRE rule
set.
• After running the test you can browse the results.
• The results are updated periodically, and the whole test
might take some time to finish.
89. Interfaces and publishing protocols
• Compatibility level "OpenAIRE 3.0" corresponds to run a
validation test on "openaire" set.
• Compatibility level "OpenAIRE 2.0" corresponds to run a
validation test on "ec_fundedresources“ set.
• Compatibility level "Driver“corresponds to run a validation
test on “driver“ set.
OR2014 @ Helsinki
92. Run Compatibility Test:
View/Select Rules
for Usage
Use of OAI-DC (M)
Use of OAI-PMH:
'openaire' or
'ec_fundedresources' or
'driver' set must exist (M)
Use of OAI-PMH:
'openaire' set must exist (M)
driver set must exist (R)
ec_fundedresources set must
exist (openaire2.0)
for Content
Field Access Level (M)
Field Alternative Identifier (R)
Field Audience (R)
Field Contributor (R)
Field Coverage (R)
Field Creator (M)
Field Date of Publication (M)
Field Description (MA)
Field Embargo End Date (MA)
Field Format (R)
Field Language (R)
Field License Condition (R)
Field Project Identifier for
ecfundedresources (M)
Field Project Identifier for
openaire(MA)
Field Publication Type (M)
Field Publication Version (R)
Field Publisher (MA)
Field Referenced Dataset (R)
Field Referenced Publication (R)
Field Resource Identifier (M)
Field Source (M)
Field Subject (MA)
Field Title (M)
94. Run Compatibility Test:
Score information
Each rule is assigned a weight. The score is estimated as
the weighted average of the percentage of errors for each
rule.
For example, for rules r1, r2, r3 with corresponding weights
w1, w2, w3, if the percentage of errors is p1, p2, p3, then
the score is calculated by the following formula:
score = (w1*p1 + w2*p2 +w3*p3) / w1+w2+w3
You can find the weights of the various rules used in a test
inside its report.
How the score is computed
95. 3. Join OpenAIRE
1. Add and correct any details in the form and click submit.
After a short compatibility test against the OpenAIRE
rule set, your repository will be ready to join OpenAIRE.
2. An email will be sent to the repository administrator to
confirm this request. Please make sure you have
contacted them before registering.
3. If the compatibility test does not succeed, you will be
unable to join OpenAIRE until you correct all the errors
that are found. Then you must re-submit your request.
100. Links
• Find and discuss the guidelines at: guidelines.openaire.eu
• Test and register the repository at: validator.openaire.eu
• Find support and more info at: www.openaire.eu
• Access the OpenAIRE API documentation: api.openaire.eu
Wiki: http://guidelines.openaire.eu
101. Q&A
OpenAIRE compatibility for repositories
Pedro Principe, pedroprincipe@sdum.uminho.pt
José Carvalho, jcarvalho@sdum.uminho.pt
Eloy Rodrigues, eloy@sdum.uminho.pt
Ricardo Saraiva, rsaraiva@sdum.uminho.pt